# RUN: llvm-mc --disassemble %s -triple=x86_64-apple-darwin9 | FileCheck %s

# CHECK: int	$33
0xCD 0x21 

# CHECK: int	$33
0xCD 0x21

# CHECK: jrcxz -127
0xe3 0x81

# CHECK: jecxz -127
0x67 0xe3 0x81

# CHECK: addb	%al, (%rax)
0 0

# CHECK: callq	-1234
0xe8 0x2e 0xfb 0xff 0xff

# CHECK: lfence
0x0f 0xae 0xe8

# CHECK: mfence
0x0f 0xae 0xf0

# CHECK: monitor
0x0f 0x01 0xc8

# CHECK: mwait
0x0f 0x01 0xc9

# CHECK: vmcall
0x0f 0x01 0xc1

# CHECK: vmfunc
0x0f 0x01 0xd4

# CHECK: vmlaunch
0x0f 0x01 0xc2

# CHECK: vmresume
0x0f 0x01 0xc3

# CHECK: vmxoff
0x0f 0x01 0xc4

# CHECK: swapgs
0x0f 0x01 0xf8

# CHECK: rdtscp
0x0f 0x01 0xf9

# CHECK: vmxon
0xf3 0x0f 0xc7 0x30

# CHECK: vmptrld
0x0f 0xc7 0x30

# CHECK: vmptrst
0x0f 0xc7 0x38

# CHECK: vmrun
0x0f 0x01 0xd8

# CHECK: vmmcall
0x0f 0x01 0xd9

# CHECK: vmload
0x0f 0x01 0xda

# CHECK: vmsave
0x0f 0x01 0xdb

# CHECK: stgi
0x0f 0x01 0xdc

# CHECK: clgi
0x0f 0x01 0xdd

# CHECK: skinit
0x0f 0x01 0xde

# CHECK: invlpga
0x0f 0x01 0xdf

# CHECK: movl $0, -4(%rbp)
0xc7 0x45 0xfc 0x00 0x00 0x00 0x00

# CHECK: movq	%cr0, %rcx
0x0f 0x20 0xc1

# CHECK: leal	4(%rsp), %ecx
0x8d 0x4c 0x24 0x04 

# CHECK: enter	$1, $2
0xc8 0x01 0x00 0x02

# CHECK: movw	$47416, -66(%rbp)
0x66 0xc7 0x45 0xbe 0x38 0xb9

# CHECK: vaddpd	%ymm13, %ymm1, %ymm0
0xc4 0xc1 0x75 0x58 0xc5

# CHECK: vaddps	%ymm3, %ymm1, %ymm0
0xc5 0xf4 0x58 0xc3

# CHECK: vandpd	%ymm13, %ymm1, %ymm0
0xc4 0xc1 0x75 0x54 0xc5

# CHECK: vandps	%ymm3, %ymm1, %ymm0
0xc5 0xf4 0x54 0xc3

# CHECK: vzeroall
0xc5 0xfc 0x77

# CHECK: vcvtps2pd %xmm0, %ymm0
0xc5 0xfc 0x5a 0xc0

# CHECK: vandps (%rdx), %xmm1, %xmm7
0xc5 0xf0 0x54 0x3a

# CHECK: vcvtss2sil %xmm0, %eax
0xc5 0xfa 0x2d 0xc0

# CHECK: vcvtsd2si %xmm0, %eax
0xc5 0xfb 0x2d 0xc0

# CHECK: vcvtsd2si %xmm0, %rax
0xc4 0xe1 0xfb 0x2d 0xc0

# CHECK: vmaskmovpd %xmm0, %xmm1, (%rax)
0xc4 0xe2 0x71 0x2f 0x00

# CHECK: vmovapd %xmm0, %xmm2
0xc5 0xf9 0x28 0xd0

# Check X86 immediates print as signed values by default.  radr://8795217
# CHECK: andq $-16, %rsp
0x48 0x83 0xe4 0xf0

# Check these special case instructions that the immediate is not sign-extend.
# CHECK: blendps $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x0c 0xca 0x81

# CHECK: blendpd $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x0d 0xca 0x81

# CHECK: pblendw $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x0e 0xca 0x81

# CHECK: mpsadbw $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x42 0xca 0x81

# CHECK: dpps $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x40 0xca 0x81

# CHECK: dppd $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x41 0xca 0x81

# CHECK: insertps $129, %xmm2, %xmm1
0x66 0x0f 0x3a 0x21 0xca 0x81

# CHECK: vblendps $129, %ymm2, %ymm5, %ymm1
0xc4 0xe3 0x55 0x0c 0xca 0x81

# CHECK: vblendps $129, (%rax), %ymm5, %ymm1
0xc4 0xe3 0x55 0x0c 0x08 0x81

# CHECK: vblendpd $129, %ymm2, %ymm5, %ymm1
0xc4 0xe3 0x55 0x0d 0xca 0x81

# CHECK: vblendpd $129, (%rax), %ymm5, %ymm1
0xc4 0xe3 0x55 0x0d 0x08 0x81

# CHECK: vpblendw $129, %xmm2, %xmm5, %xmm1
0xc4 0xe3 0x51 0x0e 0xca 0x81

# CHECK: vmpsadbw $129, %xmm2, %xmm5, %xmm1
0xc4 0xe3 0x51 0x42 0xca 0x81

# CHECK: vdpps $129, %ymm2, %ymm5, %ymm1
0xc4 0xe3 0x55 0x40 0xca 0x81

# CHECK: vdpps $129, (%rax), %ymm5, %ymm1
0xc4 0xe3 0x55 0x40 0x08 0x81

# CHECK: vdppd $129, %xmm2, %xmm5, %xmm1
0xc4 0xe3 0x51 0x41 0xca 0x81

# CHECK: vinsertps $129, %xmm3, %xmm2, %xmm1
0xc4 0xe3 0x69 0x21 0xcb 0x81

# CHECK: pause
0xf3 0x90

# CHECK: addl %eax, %edi
0x01 0xc7

# CHECK: addl %edi, %eax
0x03 0xc7

# CHECK: movl %eax, %edi
0x89 0xc7

# CHECK: movl %edi, %eax
0x8b 0xc7

# CHECK: movups %xmm1, %xmm0
0x0f 0x10 0xc1

# CHECK: movups %xmm0, %xmm1
0x0f 0x11 0xc1

# CHECK: movaps %xmm1, %xmm0
0x0f 0x28 0xc1

# CHECK: movaps %xmm0, %xmm1
0x0f 0x29 0xc1

# CHECK: movupd %xmm1, %xmm0
0x66 0x0f 0x10 0xc1

# CHECK: movupd %xmm0, %xmm1
0x66 0x0f 0x11 0xc1

# CHECK: movapd %xmm1, %xmm0
0x66 0x0f 0x28 0xc1

# CHECK: movapd %xmm0, %xmm1
0x66 0x0f 0x29 0xc1

# CHECK: vmovups %xmm1, %xmm0
0xc5 0xf8 0x10 0xc1

# CHECK: vmovups %xmm0, %xmm1
0xc5 0xf8 0x11 0xc1

# CHECK: vmovaps %xmm1, %xmm0
0xc5 0xf8 0x28 0xc1

# CHECK: vmovaps %xmm0, %xmm1
0xc5 0xf8 0x29 0xc1

# CHECK: vmovupd %xmm1, %xmm0
0xc5 0xf9 0x10 0xc1

# CHECK: vmovupd %xmm0, %xmm1
0xc5 0xf9 0x11 0xc1

# CHECK: vmovapd %xmm1, %xmm0
0xc5 0xf9 0x28 0xc1

# CHECK: vmovapd %xmm0, %xmm1
0xc5 0xf9 0x29 0xc1

# CHECK: vmovups %ymm1, %ymm0
0xc5 0xfc 0x10 0xc1

# CHECK: vmovups %ymm0, %ymm1
0xc5 0xfc 0x11 0xc1

# CHECK: vmovaps %ymm1, %ymm0
0xc5 0xfc 0x28 0xc1

# CHECK: vmovaps %ymm0, %ymm1
0xc5 0xfc 0x29 0xc1

# CHECK: movdqa %xmm1, %xmm0
0x66 0x0f 0x6f 0xc1

# CHECK: movdqa %xmm0, %xmm1
0x66 0x0f 0x7f 0xc1

# CHECK: movdqu %xmm1, %xmm0
0xf3 0x0f 0x6f 0xc1

# CHECK: movdqu %xmm0, %xmm1
0xf3 0x0f 0x7f 0xc1

# CHECK: vmovdqa %xmm1, %xmm0
0xc5 0xf9 0x6f 0xc1

# CHECK: vmovdqa %xmm0, %xmm1
0xc5 0xf9 0x7f 0xc1

# CHECK: vmovdqa %ymm1, %ymm0
0xc5 0xfd 0x6f 0xc1

# CHECK: vmovdqa %ymm0, %ymm1
0xc5 0xfd 0x7f 0xc1

# CHECK: vmovdqu %xmm1, %xmm0
0xc5 0xfa 0x6f 0xc1

# CHECK: vmovdqu %xmm0, %xmm1
0xc5 0xfa 0x7f 0xc1

# CHECK: vmovdqu %ymm1, %ymm0
0xc5 0xfe 0x6f 0xc1

# CHECK: vmovdqu %ymm0, %ymm1
0xc5 0xfe 0x7f 0xc1

# CHECK: vblendvps %xmm4, %xmm1, %xmm2, %xmm3
0xc4 0xe3 0x69 0x4a 0xd9 0x41

# CHECK: vroundpd $0, %xmm0, %xmm0
0xc4 0xe3 0x79 0x09 0xc0 0x00

# CHECK: vroundps $0, %xmm0, %xmm0
0xc4 0xe3 0x79 0x08 0xc0 0x00

# CHECK: vroundpd $0, %ymm0, %ymm0
0xc4 0xe3 0x7d 0x09 0xc0 0x00

# CHECK: vroundps $0, %ymm0, %ymm0
0xc4 0xe3 0x7d 0x08 0xc0 0x00

# CHECK: vroundss $0, %xmm0, %xmm0, %xmm0
0xc4 0xe3 0x79 0x0a 0xc0 0x00

# CHECK: vroundsd $0, %xmm0, %xmm0, %xmm0
0xc4 0xe3 0x79 0x0b 0xc0 0x00

# CHECK: crc32b %al, %eax
0xf2 0x0f 0x38 0xf0 0xc0

# CHECK: crc32w %ax, %eax
0x66 0xf2 0x0f 0x38 0xf1 0xc0

# CHECK: crc32l %eax, %eax
0xf2 0x0f 0x38 0xf1 0xc0

# CHECK: crc32q %rax, %rax
0xf2 0x48 0x0f 0x38 0xf1 0xc0

# CHECK: invept (%rax), %rax
0x66 0x0f 0x38 0x80 0x00

# CHECK: invvpid (%rax), %rax
0x66 0x0f 0x38 0x81 0x00

# CHECK: invpcid (%rax), %rax
0x66 0x0f 0x38 0x82 0x00

# CHECK: nop
0x90

# CHECK: xchgl %r8d, %eax
0x41 0x90

# CHECK: xchgq %r8, %rax
0x49 0x90

# CHECK: addb $0, %al
0x04 0x00

# CHECK: addw $0, %ax
0x66 0x05 0x00 0x00

# CHECK: addl $0, %eax
0x05 0x00 0x00 0x00 0x00

# CHECK: addq $0, %rax
0x48 0x05 0x00 0x00 0x00 0x00

# CHECK: adcb $0, %al
0x14 0x00

# CHECK: adcw $0, %ax
0x66 0x15 0x00 0x00

# CHECK: adcl $0, %eax
0x15 0x00 0x00 0x00 0x00

# CHECK: adcq $0, %rax
0x48 0x15 0x00 0x00 0x00 0x00

# CHECK: cmpb $0, %al
0x3c 0x00

# CHECK: cmpw $0, %ax
0x66 0x3d 0x00 0x00

# CHECK: cmpl $0, %eax
0x3d 0x00 0x00 0x00 0x00

# CHECK: cmpq $0, %rax
0x48 0x3d 0x00 0x00 0x00 0x00

# CHECK: testb $0, %al
0xa8 0x00

# CHECK: testw $0, %ax
0x66 0xa9 0x00 0x00

# CHECK: testl $0, %eax
0xa9 0x00 0x00 0x00 0x00

# CHECK: testq $0, %rax
0x48 0xa9 0x00 0x00 0x00 0x00

# CHECK: vaddps	%xmm3, %xmm15, %xmm0
0xc4 0xe1 0x00 0x58 0xc3

# CHECK: movbel (%rax), %eax
0x0f 0x38 0xf0 0x00

# CHECK: movbel %eax, (%rax)
0x0f 0x38 0xf1 0x00

# CHECK: movbew (%rax), %ax
0x66 0x0f 0x38 0xf0 0x00

# CHECK: movbew %ax, (%rax)
0x66 0x0f 0x38 0xf1 0x00

# CHECK: movbeq (%rax), %rax
0x48 0x0f 0x38 0xf0 0x00

# CHECK: movbeq %rax, (%rax)
0x48 0x0f 0x38 0xf1 0x00

# CHECK: rdrandw %ax
0x66 0x0f 0xc7 0xf0

# CHECK: rdrandl %eax
0x0f 0xc7 0xf0

# CHECK: rdrandq %rax
0x48 0x0f 0xc7 0xf0

# CHECK: vroundss $0, %xmm0, %xmm0, %xmm0
0xc4 0xe3 0x7d 0x0a 0xc0 0x00

# CHECK: vroundsd $0, %xmm0, %xmm0, %xmm0
0xc4 0xe3 0x7d 0x0b 0xc0 0x00

# CHECK: vcvtsd2si %xmm0, %eax
0xc4 0xe1 0x7f 0x2d 0xc0

# CHECK: vcvtsd2si %xmm0, %rax
0xc4 0xe1 0xff 0x2d 0xc0

# CHECK: vucomisd %xmm1, %xmm0
0xc5 0xfd 0x2e 0xc1

# CHECK: vucomiss %xmm1, %xmm0
0xc5 0xfc 0x2e 0xc1

# CHECK: vcomisd %xmm1, %xmm0
0xc5 0xfd 0x2f 0xc1

# CHECK: vcomiss %xmm1, %xmm0
0xc5 0xfc 0x2f 0xc1

# CHECK: vaddss %xmm1, %xmm0, %xmm0
0xc5 0xfe 0x58 0xc1

# CHECK: xsave (%rax)
0x0f 0xae 0x20

# CHECK: xrstor (%rax)
0x0f 0xae 0x28

# CHECK: xsaveopt (%rax)
0x0f 0xae 0x30

# CHECK: rdfsbasel %eax
0xf3 0x0f 0xae 0xc0

# CHECK: rdgsbasel %eax
0xf3 0x0f 0xae 0xc8

# CHECK: wrfsbasel %eax
0xf3 0x0f 0xae 0xd0

# CHECK: wrgsbasel %eax
0xf3 0x0f 0xae 0xd8

# CHECK: rdfsbaseq %rax
0xf3 0x48 0x0f 0xae 0xc0

# CHECK: rdgsbaseq %rax
0xf3 0x48 0x0f 0xae 0xc8

# CHECK: wrfsbaseq %rax
0xf3 0x48 0x0f 0xae 0xd0

# CHECK: wrgsbaseq %rax
0xf3 0x48 0x0f 0xae 0xd8

# CHECK: vcvtph2ps %xmm0, %xmm0
0xc4 0xe2 0x79 0x13 0xc0

# CHECK: vcvtph2ps (%rax), %xmm0
0xc4 0xe2 0x79 0x13 0x00

# CHECK: vcvtph2ps %xmm0, %ymm0
0xc4 0xe2 0x7d 0x13 0xc0

# CHECK: vcvtph2ps (%rax), %ymm0
0xc4 0xe2 0x7d 0x13 0x00

# CHECK: vcvtps2ph $0, %xmm0, %xmm0
0xc4 0xe3 0x79 0x1d 0xc0 0x00

# CHECK: vcvtps2ph $0, %xmm0, (%rax)
0xc4 0xe3 0x79 0x1d 0x00 0x00

# CHECK: vcvtps2ph $0, %ymm0, %xmm0
0xc4 0xe3 0x7d 0x1d 0xc0 0x00

# CHECK: vcvtps2ph $0, %ymm0, (%rax)
0xc4 0xe3 0x7d 0x1d 0x00 0x00

# CHECK: popcntl %eax, %eax
0xf3 0x0f 0xb8 0xc0

# CHECK: popcntw %ax, %ax
0x66 0xf3 0x0f 0xb8 0xc0

# CHECK: popcntq %rax, %rax
0xf3 0x48 0x0f 0xb8 0xc0

# CHECK: lzcntl %eax, %eax
0xf3 0x0f 0xbd 0xc0

# CHECK: lzcntw %ax, %ax
0x66 0xf3 0x0f 0xbd 0xc0

# CHECK: lzcntq %rax, %rax
0xf3 0x48 0x0f 0xbd 0xc0

# CHECK: tzcntl %eax, %eax
0xf3 0x0f 0xbc 0xc0

# CHECK: tzcntw %ax, %ax
0x66 0xf3 0x0f 0xbc 0xc0

# CHECK: tzcntq %rax, %rax
0xf3 0x48 0x0f 0xbc 0xc0

# CHECK: andnl %ecx, %r15d, %eax
0xc4 0xe2 0x00 0xf2 0xc1

# CHECK: andnq %rax, %r15, %rax
0xc4 0xe2 0x80 0xf2 0xc0

# CHECK: andnl (%rax), %r15d, %eax
0xc4 0xe2 0x00 0xf2 0x00

# CHECK: andnq (%rax), %r15, %rax
0xc4 0xe2 0x80 0xf2 0x00

# CHECK: blsrl (%rax), %r15d
0xc4 0xe2 0x00 0xf3 0x08

# CHECK: blsrq (%rax), %r15
0xc4 0xe2 0x80 0xf3 0x08

# CHECK: blsmskl (%rax), %r15d
0xc4 0xe2 0x00 0xf3 0x10

# CHECK: blsmskq (%rax), %r15
0xc4 0xe2 0x80 0xf3 0x10

# CHECK: blsil (%rax), %r15d
0xc4 0xe2 0x00 0xf3 0x18

# CHECK: blsiq (%rax), %r15
0xc4 0xe2 0x80 0xf3 0x18

# CHECK: bextrl %r12d, (%rax), %r10d
0xc4 0x62 0x18 0xf7 0x10

# CHECK: bextrl %r12d, %r11d, %r10d
0xc4 0x42 0x18 0xf7 0xd3

# CHECK: bextrq %r12, (%rax), %r10
0xc4 0x62 0x98 0xf7 0x10

# CHECK: bextrq %r12, %r11, %r10
0xc4 0x42 0x98 0xf7 0xd3

# CHECK: bzhil %r12d, (%rax), %r10d
0xc4 0x62 0x18 0xf5 0x10

# CHECK: bzhil %r12d, %r11d, %r10d
0xc4 0x42 0x18 0xf5 0xd3

# CHECK: bzhiq %r12, (%rax), %r10
0xc4 0x62 0x98 0xf5 0x10

# CHECK: bzhiq %r12, %r11, %r10
0xc4 0x42 0x98 0xf5 0xd3

# CHECK: pextl %r12d, %r11d, %r10d
0xc4 0x42 0x22 0xf5 0xd4

# CHECK: pextl (%rax), %r11d, %r10d
0xc4 0x62 0x22 0xf5 0x10

# CHECK: pextq %r12, %r11, %r10
0xc4 0x42 0xa2 0xf5 0xd4

# CHECK: pextq (%rax), %r11, %r10
0xc4 0x62 0xa2 0xf5 0x10

# CHECK: pdepl %r12d, %r11d, %r10d
0xc4 0x42 0x23 0xf5 0xd4

# CHECK: pdepl (%rax), %r11d, %r10d
0xc4 0x62 0x23 0xf5 0x10

# CHECK: pdepq %r12, %r11, %r10
0xc4 0x42 0xa3 0xf5 0xd4

# CHECK: pdepq (%rax), %r11, %r10
0xc4 0x62 0xa3 0xf5 0x10

# CHECK: mulxl %r12d, %r11d, %r10d
0xc4 0x42 0x23 0xf6 0xd4

# CHECK: mulxl (%rax), %r11d, %r10d
0xc4 0x62 0x23 0xf6 0x10

# CHECK: mulxq %r12, %r11, %r10
0xc4 0x42 0xa3 0xf6 0xd4

# CHECK: mulxq (%rax), %r11, %r10
0xc4 0x62 0xa3 0xf6 0x10

# CHECK: rorxl $1, %r12d, %r10d
0xc4 0x43 0x7b 0xf0 0xd4 0x01

# CHECK: rorxl $31, (%rax), %r10d
0xc4 0x63 0x7b 0xf0 0x10 0x1f

# CHECK: rorxq $1, %r12, %r10
0xc4 0x43 0xfb 0xf0 0xd4 0x01

# CHECK: rorxq $63, (%rax), %r10
0xc4 0x63 0xfb 0xf0 0x10 0x3f

# CHECK: shlxl %r12d, (%rax), %r10d
0xc4 0x62 0x19 0xf7 0x10

# CHECK: shlxl %r12d, %r11d, %r10d
0xc4 0x42 0x19 0xf7 0xd3

# CHECK: shlxq %r12, (%rax), %r10
0xc4 0x62 0x99 0xf7 0x10

# CHECK: shlxq %r12, %r11, %r10
0xc4 0x42 0x99 0xf7 0xd3

# CHECK: sarxl %r12d, (%rax), %r10d
0xc4 0x62 0x1a 0xf7 0x10

# CHECK: sarxl %r12d, %r11d, %r10d
0xc4 0x42 0x1a 0xf7 0xd3

# CHECK: sarxq %r12, (%rax), %r10
0xc4 0x62 0x9a 0xf7 0x10

# CHECK: sarxq %r12, %r11, %r10
0xc4 0x42 0x9a 0xf7 0xd3

# CHECK: shrxl %r12d, (%rax), %r10d
0xc4 0x62 0x1b 0xf7 0x10

# CHECK: shrxl %r12d, %r11d, %r10d
0xc4 0x42 0x1b 0xf7 0xd3

# CHECK: shrxq %r12, (%rax), %r10
0xc4 0x62 0x9b 0xf7 0x10

# CHECK: shrxq %r12, %r11, %r10
0xc4 0x42 0x9b 0xf7 0xd3

# CHECK: vfmadd132ps %xmm11, %xmm12, %xmm10
0xc4 0x42 0x19 0x98 0xd3

# CHECK: vfmadd132pd %xmm11, %xmm12, %xmm10
0xc4 0x42 0x99 0x98 0xd3

# CHECK: vfmadd132ps %ymm11, %ymm12, %ymm10
0xc4 0x42 0x1d 0x98 0xd3

# CHECK: vfmadd132pd %ymm11, %ymm12, %ymm10
0xc4 0x42 0x9d 0x98 0xd3

# CHECK: vfmadd132ps (%rax), %xmm12, %xmm10
0xc4 0x62 0x19 0x98 0x10

# CHECK: vfmadd132pd (%rax), %xmm12, %xmm10
0xc4 0x62 0x99 0x98 0x10

# CHECK: vfmadd132ps (%rax), %ymm12, %ymm10
0xc4 0x62 0x1d 0x98 0x10

# CHECK: vfmadd132pd (%rax), %ymm12, %ymm10
0xc4 0x62 0x9d 0x98 0x10

# CHECK: vfmadd132ss %xmm11, %xmm12, %xmm10
0xc4 0x42 0x19 0x99 0xd3

# CHECK: vfmadd132sd %xmm11, %xmm12, %xmm10
0xc4 0x42 0x99 0x99 0xd3

# CHECK: vfmadd132ss (%rax), %xmm12, %xmm10
0xc4 0x62 0x19 0x99 0x10

# CHECK: vfmadd132sd (%rax), %xmm12, %xmm10
0xc4 0x62 0x99 0x99 0x10

# CHECK: vfmaddss (%rcx), %xmm1, %xmm0, %xmm0
0xc4 0xe3 0xf9 0x6a 0x01 0x10

# CHECK: vfmaddss %xmm1, (%rcx), %xmm0, %xmm0
0xc4 0xe3 0x79 0x6a 0x01 0x10

# CHECK: vpermil2ps $1, 4(%rax), %xmm2, %xmm3, %xmm0
0xc4 0xe3 0xe1 0x48 0x40 0x04 0x21

# rdar://8812056 lldb doesn't print the x86 lock prefix when disassembling
# CHECK: lock
# CHECK-NEXT: xaddq	%rcx, %rbx
0xf0 0x48 0x0f 0xc1 0xcb